An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
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| Number | Title | Issue Date |
| 6968866 | Tent fabric, twisted union yarn of kenaf, and process for producing the same A tent fabric comprising a woven fabric made of yarns containing kenaf fibers in an amount of 10 wt. % or more. The tent fabric after use can easily be recycled and hence contributes to resource saving and environmental protection. ... | 11/29/2005 |